Carriage-spring



E. MAYNARD.

Carriage-Spring,

No 27.731 A Patented Apr. 3, 1860.

PETERS, PHOTO-UTHOGRAFHER, WASHINGTON, D C. I

UNITED sTaTns PATENT orrron.

EDIVARD MAYNARD, OF BROOKLYN, NINY YORK.

CARRIAGE-SPRING.

Specification of Letters Patent No. 27,731, dated April 3, 1860.

To all whom it may concern:

Be it known that I, EDWARD MAYNARD, of Brooklyn, in the county of Kingsand State of New York, have invented and made a certain Improvement inSprings for Carriages; and I do hereby declare that the following is afull, clear, and exact description of the construction and operation ofthe said invention, reference being had to the annexed drawing, makingpart of this specification, wherein Figure 1, is an elevation of saidspring and Fig. 2, is an end view of the same.

Like characters denote the same parts.

In light carriages adapted to the pavements of cities particularly,there is more need of a sidewise spring and play than simply a verticalmotion, because the wheels rolling over the stones do not impart muchvibration; but the wheels slipping down into ruts and sidewise off ofthe round or cobble stones, give a very unpleasant sidewise jar to therider. The elliptic springs being adapted principally to a verticalmotion do not obviate the difliculties before mentioned, and the varioussuspension springs heretofore constructed do not remove said objections.

The nature of my said invention consists in a double curved wing shapedspring resting at the center of the axle and taking at its extremitiesthe body of the wagon in such a manner that while allowing verticalmotion sufiicient for removing concussion, the body of the carriage orwagon is allowed to remain almost quiescent, because a side move mentand jar can be given to the wheels, and the spring yielding preventsthis movement communicating with the body of the carriage. Beside this Iconnect my spring to the axle in such a mannerthat the axle is notweakened by bolt holes through the same and the spring is very firmlyheld in its place.

In the drawing a, represents the carriage axle, b, the carriage body orframe to be supported.

c, is my improved spring attached by the clip (Z, to the axle, and bythe bolts 1, 1, to the body I). The clip (Z, is formed as a curved chair2, 2, between the clip pieces 3, 3, that connect to the axle a, and thechair 2, receives the spring 0, at the center thereof, at which pointsaid spring is bent almost to a semi circle, and the ends of the springscurve upwards from this center semi circle in the form of wings, to thebolts 1, 1.

4, 4, are bolts passing through the spring 0, near the middle thereofand through the chair 2, so that said chair clip and spring are firmlyconnected to each other. spring itself is formed of two or more leavesextending to and surrounding the bolts 1, 1, in the form of eyes, andthe lower leaf of the spring being shorter than the upper one causes anopening'between said leaves as shown, and prevents the two leavesbinding onto each other under any compression.

It will now be evident that the spring starting from the chair 2, in anupward direction allows of a considerable lateral movement of the wheelswithout imparting that movement suddenly to the carriage body. At thesame time all necessary vertical play is allowed for.

My spring is neat, handsome, cheap, com pact, durable, does not requirebolts through the axle by which the same would be weakened, and isespecially adapted for light carriages and such as are used on streetsof cities, although I do not limit myself in this particular.

It will be seen that in consequence of the double curved or wing shapewhich I give to my spring the same can be rigidly attached to the axle,and also direct to the bolts 1, 1, or body loops of the wagon, and thatthe spring is free to play up or down without any liability to cramp orbreak the same, because it not only is bent to a smaller curve under theoperation of weight but the curved parts approach nearer each other, bythe spring bending near its center parts on each side of the connectionto the clip. The leaves of the spring each being extended to and bentaround the eye, are kept in the proper relative positions and noliability exists of breakage as where the ends of the spring are rivetedto each other.

The bolts 1, 1, taking the ends of the springs being formed at the endsof the irons or loops that pass along beneath the body, permit ofdispensing with all the cross bars or frames heretofore used inconnecting springs to wagon bodies, and all chains or links heretoforeused between the spring and body are entirely dispensed with.

In my clip it will be seen that I not only The connect my spring firmlyWithout any bolts to the bolts 1, l, or body loops substantially passingthrough the axle, but I also remove the weight from the center of saidaxle and throw the same by the clips 3, 3, nearer towards the Wheels,dispensing the weight, and rendering the axle less liable to injury.

Having thus described the nature and operation of my said invention,what I claim and desire to secure by Letters Patent is 1. The doublecurved or wing shaped spring 0, formed with separated leaves as setforth, and connected at the center part to the axle by means of thecurved chair s clip or its equivalent and by eyes at the ends 1 as andfor the purposes specified.

2. I also claim the chair clip d, to which the spring is firmly bolted,and which is attached to the axle by the two clip pieces 3, 3,

whereby the axle is not injured by bolt holes (for the springs) and theweight is distributed on said axle as specified.

In witness whereof I have hereunto set my signature this 16th day ofJanuary 1860. 25

E. MAYNARD.

Witnesses:

LEMrmL W. SERRELL, THos. G120. HAROLD.

